A New Generation of Multigrade “MS” Oils: Laboratory and Field Performance 690558

This paper characterizes the features and describes some of the benefits of the present generation of multigrade “MS” oils. Particular emphasis is placed upon viscosity retention characteristics as a function of the stability of the viscosity index improver.
Comparative automobile field tests in private commuter, taxicab, and highway service are shown for both SAE 10W-30 and a carefully compounded SAE 10W-40 oil. Observations of cylinder and piston ring wear, crankcase deposits, PCV valve cleanliness, and oil economy are reported.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.